Nevadaite (IMAGE)

Terry Collins Assoc

Nevadaite

Caption

Nevadaite (Cu2+,Al,V3+)6[Al8(PO4)8F8](OH)2·22H2O) is a category 1 and 2 rarity--formed from the scarce elements vanadium and copper under very restricted environmental conditions. The crystals are colorful but microscopic, and only known from two localities--Eureka County, Nevada, and a copper mine in Kyrgyzstan.

High-res: http://bit.ly/20Gy3f2

Credit

Robert Downs, University of Arizona.

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